CN213781926U - Interlocking device for vacuum circuit breaker and vacuum circuit breaker - Google Patents
Interlocking device for vacuum circuit breaker and vacuum circuit breaker Download PDFInfo
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- CN213781926U CN213781926U CN202021965596.6U CN202021965596U CN213781926U CN 213781926 U CN213781926 U CN 213781926U CN 202021965596 U CN202021965596 U CN 202021965596U CN 213781926 U CN213781926 U CN 213781926U
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- circuit breaker
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Abstract
The utility model relates to an interlock for vacuum circuit breaker, interlock can switch between first state and second state. When the interlock device is in the first state, the P2 mechanism can open and close the vacuum circuit breaker, and the CD110 mechanism cannot perform isolation and/or grounding operations. When the interlock is in the second state, the vacuum interrupter is locked in the open position and the CD110 mechanism is capable of isolation and/or grounding operation. When the vacuum circuit breaker is switched on, the interlocking device is locked in the first state, and when the vacuum circuit breaker is switched off, the interlocking device can be switched between the first state and the second state. The utility model discloses still relate to a vacuum circuit breaker including such interlock.
Description
Technical Field
The utility model relates to an interlock for vacuum circuit breaker, it can realize vacuum circuit breaker's the interlocking of CD110 mechanism and P2 mechanism, prevents to divide under the loaded condition, closes isolator. The utility model discloses still relate to one kind and include interlock's vacuum circuit breaker.
Background
The national grid company regulations on safety against electrical misoperation (national grid safety supervision 2006) 904 requires that load-carrying disconnecting and disconnecting switches are prevented from being opened and closed, namely, the disconnecting switches of the circuit breakers, the load switches and the contactors are not operable in a closing state.
The P2 mechanism of the vacuum circuit breaker enables the opening and closing operation of the vacuum circuit breaker. The CD110 mechanism is a novel three-position mechanism for a vacuum circuit breaker, and can realize isolation and grounding operations. The CD110 mechanism includes two operation holes, and isolation and grounding operations are performed by inserting an operation handle. However, the combined use of the CD110 mechanism and the P2 mechanism on a vacuum interrupter cabinet is not precedent. The existing interlock of the vacuum circuit breaker cannot be applied to the interlock between the CD110 mechanism and the P2 mechanism.
Therefore, an interlock device capable of realizing the interlock of the CD110 mechanism and the P2 mechanism in the vacuum circuit breaker is needed to prevent the disconnecting switch from being switched on and off under the condition of load so as to meet the requirement of preventing the safety of electrical misoperation.
SUMMERY OF THE UTILITY MODEL
Therefore, the present invention is directed to an interlock device for a vacuum circuit breaker, which can interlock a CD110 mechanism and a P2 mechanism of the vacuum circuit breaker to prevent a disconnecting switch from being opened or closed under a loaded condition.
The object is through an interlock device of a vacuum circuit breaker according to an embodiment of the invention. The vacuum interrupter includes a P2 mechanism, a CD110 mechanism, and an interlock disposed between the P2 mechanism and the CD110 mechanism. The P2 mechanism is used for realizing the switching-on and switching-off operation of the vacuum circuit breaker. The CD110 mechanism is used to enable isolation and/or grounding operation of the vacuum interrupter. The interlock device is switchable between a first state and a second state. When the interlock is in the first state, the P2 mechanism is capable of opening and closing the vacuum interrupter, and the CD110 mechanism is not capable of isolation and/or grounding operation. When the interlock is in the second state, the vacuum interrupter is locked in the open position and the CD110 mechanism is capable of isolation and/or grounding operation. When the vacuum circuit breaker is switched on, the interlocking device is locked in the first state, and when the vacuum circuit breaker is switched off, the interlocking device can be switched between the first state and the second state.
According to the technical scheme, when the vacuum circuit breaker is switched on, namely the vacuum circuit breaker is loaded, the CD110 mechanism cannot perform isolation and/or grounding operation, and when the CD110 mechanism performs isolation and/or grounding operation, the vacuum circuit breaker is locked in a switching-off state, so that the condition that the disconnecting switch is switched off and on with a load is completely avoided.
According to a preferred embodiment of the invention, the interlock comprises an interlock handle. The switching of the interlock between the first state and the second state is actuated by an interlock handle. The interlock handle remains in the first position when the interlock is in the first state and in the second position when the interlock is in the second state. Thus, the user can realize the state switching of the interlocking device by operating the interlocking handle.
According to a preferred embodiment of the present invention, the interlock device includes a slide plate, one end of which is connected to the interlock handle so as to be moved by the interlock handle. The slide is in an upward position when the interlock handle is resting in the first position and in a downward position when the interlock handle is resting in the second position. When the vacuum circuit breaker is closed, the slider is held in the upward position and movement from the upward position to the downward position is prevented, so that the interlock handle is locked in the first position. When the vacuum circuit breaker is opened, the slide plate can move between an upward position and a downward position, so that the interlocking handle can move between a first position and a second position.
According to a preferred embodiment of the present invention, the P2 mechanism includes a main shaft, rotation of the main shaft realizes switching-off and switching-on operations of the vacuum circuit breaker, the interlocking device includes a main shaft interlocking piece fixed on the main shaft of the P2 mechanism, and the sliding piece includes a protrusion. When the vacuum circuit breaker is closed, the spindle interlock piece rotates downward to block a moving path of the protrusion, so that the slider is held at an upward position; when the vacuum circuit breaker is opened, the main shaft interlocking piece rotates upward and moves out of the moving path of the protrusion part, so that the sliding piece can move between the upward position and the downward position. Alternatively, when the interlock handle is in the first position, the protrusion of the slide plate can block the rotational path of the spindle interlock plate, thereby blocking the rotation of the spindle, so that the vacuum circuit breaker is locked in the open state.
According to a preferred embodiment of the present invention, the main shaft interlocking piece has an L-shape, one branch of the L-shape is fixed to the main shaft of the P2 mechanism, and the other branch of the L-shape is used for blocking a moving path of the protrusion when the vacuum circuit breaker is closed.
According to a preferred embodiment of the invention, the interlock comprises a P2 interlock lever connected at one end to the interlock handle so as to be carried by the interlock handle and extending at the other end to the P2 mechanism. The P2 structure includes a lock opening lever, when the lock opening lever is jacked up, the rotation of the main shaft from opening to closing is blocked, so that the vacuum circuit breaker is locked in an opening state. When the interlocking handle is at the second position, the other end of the P2 interlocking rod jacks up the locking and separating rod, so that the vacuum circuit breaker is locked in a brake separating state. When the interlock handle is in the first position, the other end of the P2 interlock lever moves away from the lock open lever, enabling the vacuum interrupter to open and close.
According to a preferred embodiment of the present invention, the CD110 mechanism includes an operation hole and an operation cover plate, an operation handle is inserted into the operation hole for realizing the isolation and/or grounding operation of the vacuum circuit breaker, and the operation cover plate can cover the operation hole and can swing away from the operation hole. The interlock further includes: a CD110 link having one end connected to and driven by the interlock handle and the other end extending to the CD110 mechanism and provided with a link pin; one end of the CD110 interlocking piece is rotatably connected to the operating cover plate and driven by the operating cover plate, and the other end of the CD110 interlocking piece is rotatably connected to the CD110 connecting rod; and a CD110 interlock support fixed to the CD110 mechanism and provided with a slide groove through which the link pin passes and is slidable therein. When the interlock handle is in the first position, the link pin slides to the first end of the chute and abuts against the CD110 interlock tab to prevent it from rotating, thereby preventing the operating cover from swinging away from the operating aperture. When the interlocking handle is at the second position, the connecting rod pin slides to the second end part of the sliding chute, and the CD110 interlocking piece can pivot by taking the connecting rod pin as a shaft, so that the operating cover plate can swing away from the operating hole, and the isolation or grounding operation can be carried out.
According to a preferred embodiment of the invention, the interlock device comprises a spring mounted on the interlock handle for holding the interlock handle in one of the first and second positions. The spring passes through a dead center position during movement of the interlock handle between the first position and the second position. Optionally, the spring is a tension spring. According to the technical scheme, when the interlocking handle moves from the first position to the second position or moves from the second position to the first position, the spring force needs to be overcome. Thus, it is facilitated to stably hold the interlock handle in the first position or the second position.
According to a preferred embodiment of the present invention, the interlock device includes a slide handle installed on a panel of the vacuum circuit breaker, the slide handle being used to drive the interlock handle. According to the technical scheme, a user can drive the interlocking handle to move between the first position and the second position by pulling the sliding handle up and down. It is contemplated that the interlock handle may also extend directly to the faceplate of the vacuum interrupter so that a user may directly operate the interlock handle.
The utility model discloses still relate to a vacuum circuit breaker, it includes as before the interlock.
Drawings
In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the drawings of the embodiments will be briefly described below, and it is obvious that the drawings in the following description only relate to some embodiments of the present invention, and are not intended to limit the present invention.
Fig. 1 shows a schematic view of an interlock arrangement of a vacuum circuit breaker according to an embodiment of the invention;
FIGS. 2A and 2B show a schematic view of an interlock handle of an interlock device in a first position and a second position;
fig. 3A and 3B show the P2 interlock lever in different states;
fig. 4A-4C illustrate CD110 link 14, CD110 interlock tab 15, and the operating cover plate 31 of the CD110 mechanism of interlock 1 according to one embodiment of the present invention;
FIGS. 5A-5C illustrate the CD110 mechanism in various states;
fig. 6 is a detailed view of the interlock handle.
List of reference numerals
100 vacuum interrupter 19 slide handle
1 interlock 21 spindle
Operating cover plate of 3 CD110 mechanism 31
11 interlock handle 32 operation hole
12 slide tab 121 projection
14 CD110 connecting rod 151 through hole
15 CD110 interlocking piece 152 long slot
16 CD110 interlocking support 161 chute
17 spindle interlock tab 310 projection
18 spring
Detailed Description
In order to make the technical solution of the present invention, its purpose, technical solution and advantages become clearer, the drawings of the embodiments of the present invention will be combined hereinafter, and the technical solution of the embodiments of the present invention will be clearly and completely described. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of the words "a," "an," or "the" and similar referents in the specification and claims of the present application does not denote a limitation of quantity, but rather denotes the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item preceding the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items.
The interlock device 1 for the vacuum circuit breaker 100 according to the present invention will be described in detail with reference to fig. 1 to 5.
First, referring to fig. 1, the vacuum circuit breaker 100 includes a P2 mechanism 2 and a CD110 mechanism 3, and the interlock device 1 is used to achieve the interlock of the P2 mechanism 2 and the CD110 mechanism 3. In the embodiment shown in fig. 1, interlock device 1 includes interlock handle 11, slide 12 connected to interlock handle 11 and carried by interlock handle 11, P2 interlock lever 13, and CD110 link 14. The slide 12 extends to the main shaft 21 of the P2 mechanism 2, the P2 interlocking lever 13 extends to the lock division lever 22 of the P2 mechanism 2, and the CD110 link 14 extends to the operating cover plate 31 of the CD110 mechanism 3. In the embodiment of fig. 1, the operating cover 31 is in particular an isolating operating cover. It is contemplated that the operating cover 31 may also be a grounded operating cover.
The interlock handle 11 is movable between a first position and a second position and is held in either the first position or the second position by a spring 17 mounted on the interlock handle 11. The movement of the interlock handle 11 can move the slide 12, the P2 interlock lever 13 and the CD110 link 14 to act on the P2 mechanism 2 or the CD110 mechanism 3, respectively, to interlock the two.
Specifically, movement of interlock handle 11 between the first and second positions moves slide 12 between the upward and downward positions. The slide 12 is provided with a projection 121, and the projection 121 can cooperate with a spindle interlock piece 17 fixed to the spindle 21 to switch between two states of allowing the slide 12 to move between the upward position and the downward position and prohibiting the slide 12 from moving between the upward position and the downward position.
Referring to fig. 2A and 2B, the spindle interlock piece 17 has an L-shape, one branch of which is fixed to the spindle 21. When the vacuum circuit breaker 100 is closed, the spindle 21 rotates the spindle interlock piece 17, and the other branch of the L-shape rotates to the moving path of the protrusion 121, preventing the downward movement of the protrusion 121, so that the slider 12 is held at the upward position. That is, the slide 12 cannot move from the upward position to the downward position. Accordingly, the interlock handle 11 cannot be moved from the first position to the second position. On the other hand, when the vacuum circuit breaker 100 is opened, the spindle 21 rotates the spindle interlock piece 17 in the opposite direction, and the other branch of the L-shape rotates away from the moving path of the protrusion 121, and does not prevent the movement of the protrusion 121, thereby allowing the movement of the slider 12 between the upward position and the downward position. Accordingly, the interlock handle 11 can be moved from the first position to the second position and also from the second position to the first position.
The P2 interlock lever 13 has one end connected to the interlock handle 11 and the other end extending to the lock lever 22 of the P2 mechanism 2. Referring to fig. 3A, P2 interlock lever 13 is shown with interlock handle 11 in a first position. At this time, the P2 interlock lever 13 is away from the opening lock lever 22, the rotation of the main shaft 21 is not hindered, and the vacuum circuit breaker 100 can freely open and close. Fig. 3B shows P2 interlock lever 13 with interlock handle 11 in the second position. At this time, the P2 interlock lever 13 pushes up the opening lock lever 22, and the rotation of the main shaft 21 from opening to closing is blocked, whereby the vacuum circuit breaker 100 is locked in the opening state.
The CD110 mechanism 3 is interlocked by the CD110 link 14, the CD110 interlocking piece 15 and the CD110 interlocking bracket 16 of the interlocking device 1. Specifically, referring to fig. 4A, one end of the CD110 link 14 is connected to the interlock handle 11, and the other end extends to the CD110 mechanism 3 and is provided with a link pin 141. Referring to fig. 4B, the CD110 interlocking piece 15 includes a through hole 151 at one end and a long slot hole 152 at the other end. Fig. 4C then shows the operating cover plate 31 of the CD110 mechanism 3. The operation cover 31 is provided with a projection 310 at an end thereof. In the assembled configuration, the protrusion 310 of the operating cover plate 31 passes through the through-hole 151 of the CD110 interlocking piece 15, so that the operating cover plate 31 and the CD110 interlocking piece 15 are rotatably connected together. The CD110 interlock support 16 is fixed to the CD110 mechanism 3 and is provided with a slide slot 161. The CD110 interlock tab 15 is mounted to the CD110 interlock support 16 by a pin and slot mating structure via a link pin 141 such that the CD110 interlock tab 15 can pivot and translate relative to the CD110 interlock support 16.
Fig. 5A-5C illustrate the operation of the CD110 mechanism 3 according to one embodiment of the present invention. In the state shown in fig. 5A-5B, the interlock handle 11 is in the second position, the link pin 141 slides to the second end of the slide slot 161, and the CD110 interlock piece 15 can pivot about the link pin 141. The swinging movement of the operating cover 31 is thus unhindered, can be swung away from the operating hole 32 and an operating handle can be inserted for isolated or grounded operation. In fig. 5A, the operation cover 31 blocks the operation hole 32, and in fig. 5B, the operation cover 31 swings away from the operation hole 32. As described above, when the interlock handle 11 is in the second position, the P2 interlock lever 13 jacks up the locking opening lever 22 so that the vacuum circuit breaker 100 is locked in the open state. That is, the vacuum interrupter 100 is locked in the open state when the CD110 mechanism 3 is operated. For example, the vacuum interrupter 100 is locked in the trip position when the isolation operation is performed.
In the state shown in fig. 5C, the interlock handle 11 is in the first position, and the link pin 141 slides to the first end of the slide slot 161 and abuts against the CD110 interlock piece 15 so as not to rotate, and thus the operation cover 31 cannot swing away from the operation hole 32. Thus, the operation handle cannot be inserted into the operation hole 32, and the isolation or grounding operation cannot be performed. As described above, the vacuum circuit breaker 100 can perform opening and closing when the interlock handle 11 is in the first position. However, if the vacuum circuit breaker 100 is closed, the interlock handle 11 is locked at the first position and cannot be moved to the second position, so that the isolation or grounding operation by the CD110 mechanism 3 cannot be performed. For example, upon closing of the vacuum circuit breaker 100, the isolation cannot be operated by the CD110 mechanism 3.
Fig. 6 shows in detail the interlock handle 11 according to an embodiment of the present invention. As shown, a spring 18, in this example a tension spring, is provided on the interlock handle 11. During the movement of the locking handle 11 between the first position and the second position, the spring 18 is first extended, passes the dead center position where it is pulled to the longest, and then contracts under the spring force. The first position and the second position of the interlock handle 11 are the shortest two positions where the spring 18 contracts. Thus, the spring force needs to be overcome when the interlock handle 11 is moved from the first position to the second position or from the second position to the first position. Therefore, the interlock handle 11 is stably held in the first position or the second position.
In addition, fig. 6 also shows a sliding handle 19 mounted on the panel of the vacuum interrupter 100. A slide handle 19 is connected to the interlock handle 11 for carrying the interlock handle 11. When the interlocking handle 11 needs to be operated, a user pulls the sliding handle 19 up and down to drive the interlocking handle 11 to move between the first position and the second position. Of course, the interlock handle 11 may also be directly extended to the panel of the vacuum circuit breaker so that the user can directly operate the interlock handle 11.
To sum up, embodiments of the present invention provide an interlock device 1 for a vacuum circuit breaker. The interlock device 1 is switchable between a first state (corresponding to the interlock handle 11 being in the first position) and a second state (corresponding to the interlock handle 11 being in the second position). When the interlock device 1 is in the first state, the vacuum interrupter 100 can be opened and closed, while the CD110 mechanism cannot perform isolation and/or grounding operations. When the interlock device 1 is in the second state, the vacuum interrupter 100 is locked in the open state and the CD110 mechanism is capable of isolation and/or grounding operation. When the vacuum circuit breaker 100 is switched on, the interlock device 1 is locked in the first state, and when the vacuum circuit breaker 100 is switched off, the interlock device 1 can be switched between the first state and the second state.
Therefore, the interlocking device according to the utility model discloses a CD110 mechanism and the interlocking of P2 mechanism of vacuum circuit breaker have been realized, can prevent to divide under the loaded condition, close isolator.
The embodiment of the utility model provides a vacuum circuit breaker is still provided, it includes as before the interlock.
The above description is only for the specific implementation of the present invention, but the scope of the embodiments of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes, substitutions or combinations within the technical scope of the embodiments of the present invention or under the idea of the embodiments of the present invention, and all should be covered within the scope of the embodiments of the present invention.
Claims (11)
1. An interlock for a vacuum circuit breaker, the vacuum circuit breaker (100) comprising a P2 mechanism (2) and a CD110 mechanism (3), the P2 mechanism (2) being for enabling opening and closing operations of the vacuum circuit breaker (100), the CD110 mechanism (3) being for enabling isolating and/or grounding operations of the vacuum circuit breaker (100), the interlock (1) being arranged between the P2 mechanism (2) and the CD110 mechanism (3), characterized in that the interlock (1) is switchable between a first state and a second state, the P2 mechanism (2) being capable of opening and closing the vacuum circuit breaker (100) when the interlock (1) is in the first state, the CD110 mechanism (3) being incapable of isolating and/or grounding operations, the vacuum circuit breaker (100) being locked in the open state when the interlock (1) is in the second state, and the CD110 mechanism (3) can perform an isolation and/or grounding operation, wherein when the vacuum circuit breaker (100) is switched on, the interlocking device (1) is locked in the first state, and when the vacuum circuit breaker (100) is switched off, the interlocking device (1) can be switched between the first state and the second state.
2. The interlock device for a vacuum circuit breaker according to claim 1,
the interlock device (1) comprises an interlock handle (11), the switching of the interlock device (1) between the first state and the second state being actuated by the interlock handle (11), wherein the interlock handle (11) stays in the first position when the interlock device (1) is in the first state and the interlock handle (11) stays in the second position when the interlock device (1) is in the second state.
3. The interlock device for a vacuum circuit breaker according to claim 2,
the interlocking device (1) comprises a sliding piece (12), one end of the sliding piece is connected to the interlocking handle (11) and is driven by the interlocking handle (11), when the interlocking handle (11) stays at a first position, the sliding piece (12) is in an upward position, when the interlocking handle (11) stays at a second position, the sliding piece (12) is in a downward position, when the vacuum circuit breaker (100) is switched on, the sliding piece (12) is kept at the upward position, the movement from the upward position to the downward position is prevented, the interlocking handle (11) is locked at the first position, when the vacuum circuit breaker (100) is switched off, the sliding piece (12) can move between the upward position and the downward position, and the interlocking handle (11) can move between the first position and the second position.
4. The interlock device for a vacuum circuit breaker according to claim 3,
the P2 mechanism (2) comprises a main shaft (21), the rotation of the main shaft (21) realizes the switching-on and switching-off operation of the vacuum circuit breaker (100), the interlocking device (1) also comprises a main shaft interlocking piece (17) fixed on the main shaft (21) of the P2 mechanism (2), and the sliding piece (12) comprises a protruding part (121), when the vacuum circuit breaker (100) is switched on, the main shaft interlocking piece (17) rotates downwards to block the moving path of the protruding part (121), so that the sliding piece (12) is kept at the upward position, when the vacuum circuit breaker (100) is switched off, the main shaft interlocking piece (17) rotates upwards to move out of the moving path of the protruding part (121), so that the sliding piece (12) can move between the upward position and the downward position.
5. The interlock device for a vacuum circuit breaker according to claim 4,
when the interlocking handle (11) is at the first position, the protrusion (121) of the sliding piece (12) can block the rotating path of the spindle interlocking piece (17), so that the spindle (21) is blocked from rotating, and the vacuum circuit breaker (100) is locked in an opening state.
6. The interlock device for a vacuum circuit breaker according to claim 4,
the spindle interlocking piece (17) has an L-shape, one branch of the L-shape is fixed on the spindle (21) of the P2 mechanism (2), and the other branch of the L-shape is used for blocking the moving path of the protrusion (121) when the vacuum circuit breaker (100) is closed.
7. The interlock device for a vacuum circuit breaker according to claim 2,
the interlock device (1) comprises a P2 interlock lever (13) one end of which is connected to the interlock handle (11), and is driven by the interlocking handle (11), the other end of the interlocking handle extends to the P2 mechanism (2), the P2 mechanism comprises a main shaft (21) and a locking and separating rod (22), the rotation of the main shaft (21) realizes the switching-on and switching-off operation of the vacuum circuit breaker (100), when the lock opening lever (22) is jacked up, the rotation of the main shaft (21) from opening to closing is blocked, so that the vacuum circuit breaker (100) is locked in an opening state, when the interlocking handle (11) is at the second position, the other end of the P2 interlocking rod (13) jacks up the locking and separating rod (22) so that the vacuum circuit breaker (100) is locked in a separating brake state, when the interlocking handle (11) is at the first position, the other end of the P2 interlocking rod (13) moves away from the locking and separating rod (22), so that the vacuum circuit breaker (100) can be opened and closed.
8. The interlock device for a vacuum circuit breaker according to claim 2,
the CD110 mechanism (3) comprises an operation hole (32) and an operation cover plate (31), an operation handle is inserted into the operation hole (32) for realizing the isolation and/or grounding operation of the vacuum circuit breaker (100), the operation cover plate (31) can cover the operation hole (32) and can swing away from the operation hole (32), wherein, the interlocking device also comprises:
a CD110 link (14) having one end connected to the interlock handle (11) and carried by the interlock handle (11) and the other end extending to the CD110 mechanism (3) and provided with a link pin (141);
a CD110 interlocking piece (15) with one end rotatably connected to the operation cover plate (31) and driven by the operation cover plate (31) and the other end rotatably connected to the CD110 link (14); and
a CD110 interlocking bracket (16) fixed to the CD110 mechanism (3) and provided with a slide groove (161), the link pin (141) passing through the slide groove (161) and being slidable therein,
when the interlocking handle (11) is in the first position, the connecting rod pin (141) slides to the first end of the sliding groove (161) and abuts against the CD110 interlocking piece (15) to be incapable of rotating, so that the operating cover plate (31) cannot swing away from the operating hole (32), when the interlocking handle (11) is in the second position, the connecting rod pin (141) slides to the second end of the sliding groove (161), the CD110 interlocking piece (15) can pivot by taking the connecting rod pin (141) as a shaft, so that the operating cover plate (31) can swing away from the operating hole (32), and therefore isolation or grounding operation can be conducted.
9. The interlock device for a vacuum circuit breaker according to claim 2,
the interlock device (1) comprises a spring (18) mounted on the interlock handle (11) for holding the interlock handle (11) in one of a first position and a second position, wherein the spring (18) passes a dead-center position during movement of the interlock handle (11) between the first position and the second position.
10. The interlock device for a vacuum circuit breaker according to claim 1,
the interlocking device (1) comprises a sliding handle (19) arranged on a panel of the vacuum circuit breaker (100), and the sliding handle (19) is used for driving the interlocking handle (11).
11. A vacuum interrupter, characterized in that the vacuum interrupter (100) comprises an interlock device for a vacuum interrupter according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021965596.6U CN213781926U (en) | 2020-09-10 | 2020-09-10 | Interlocking device for vacuum circuit breaker and vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021965596.6U CN213781926U (en) | 2020-09-10 | 2020-09-10 | Interlocking device for vacuum circuit breaker and vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213781926U true CN213781926U (en) | 2021-07-23 |
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ID=76904333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021965596.6U Active CN213781926U (en) | 2020-09-10 | 2020-09-10 | Interlocking device for vacuum circuit breaker and vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213781926U (en) |
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2020
- 2020-09-10 CN CN202021965596.6U patent/CN213781926U/en active Active
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